Answer:
A multicellular organism develops from a single cell (the zygote) into a ... tissue and organ development, and cell differentiation (gaining a final cell type identity). ... To function correctly, that body needs well-defined axes (such as head vs. tail). ... Mature cell types of the body, like neurons and liver cells, express different sets
Explanation:
True or false, Water molecules tend to push away from each other.
Answer:
False
Explanation:
Water molecules actually adhere to eachother
Explain how the development and improvement of microscopes changed the study of living organisms.
Answer: As scientists started improving on the microscopes, the more they got to observe the cells in depth. Compound light microscope uses visible light to produce a magnified image and doesn't allow it to scatter.
How is the difference in the walls of the atria and ventricle related to the different functions of the atria and ventricle?
Answer:
The atria are thin-walled sacs that receive blood from the body or lungs, while the ventricles have a thick muscular wall because they must pump the blood with greater pressure than the atria.
Explanation:
In the human heart, the atria and ventricles are responsible for handling blood and have different structures and function.
The atria are thin-walled sacs located at the top of the ventricles and their function is to receive the blood that comes from the whole body —right atrium— or from the lungs —left atrium— to pass it to each ventricle through the atrioventricular valves, which does not require much pressure. On the other hand, the walls of the ventricles are made up of a thick layer of muscular tissue, since the pressure with which they must pump the blood -towards the lungs or to the entire organism- is greater than that of the atria.The structure of each chamber of the heart is configured to be able to fulfill the specific function that they possess.
What shift in population growth has occurred by point A?
1 The birth and death rates are equivalent.
2 The rate of emigration equals the death rate.
3 The population sizes of the organism and its predator are equalized.
4 There will be more food available than the populations can consume.
The shift in population growth has occurred by point A is The birth and death rates are equivalent.
How does birth rate and death rate affect population growth?Population alteration is controlled by the balance between birth rates and death rates.
Suppose the birth rate stays constant and the death rate decline, then population numbers will increase.
whereas If the birth rate grow at a faster rate and the death rate stays the constant, then population will also increase.
Thus, option "A' is correct, The birth and death rates are equivalent.
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Answer:
D. There will be more food available than the populations can consume.
Explanation:
I Hope this Help and I did the Test
Is an acid a compound that splits OH-ions
Answer:
Acids are compounds that dissociate (break) into hydrogen (H+) ions and another compound when placed in an aqueous solution. ... If one of the ions is OH-, the solution is basic. An example of a strong base is sodium hydroxide (NaOH).
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What is a biogeochemical cycle?
A. Cycles from earth to life back to the earth.
B. Cycles from within the earth to the surface and back into the earth.
C. Cycles from the atmosphere into the earth.
Helpppp
Answer:
I believe is B
Explanation:
cycling substance is a pathway the chemical substance moves through biotic and abiotic compartments.
what structure does annelids use?
(In your own words)
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. During which part of the cell cycle does the cell divide?
Answer:
The part of the cell cycle in which the cell divides is called mitosis.
Explanation:
Mitosis, or M phase of the cell cycle, is where the somatic cell divides to obtain two daughter cells identical to the original. Mitosis is divided into four phases, known as prophase, metaphase, anaphase and telophase.
Literally, cell division into two daughter cells or cytokinesis occurs in the last phase of mitosis, telophase, since in the other phases cell nucleus division and chromosome distribution occurs.
The other major part of the cell cycle is known as the interphase, in which the cell prepares for division in the M phase.
Organisms, such as animals, can be organized by their smaller components. An animal, such as a dog, can be described by its smaller units.
In this case, the dog is the organism, which is made up of organ systems such as the nervous system. The nervous system is made up of organs such as the brain.
Describe the last three units of organization left in the dog from largest to smallest and be sure to give an example of each.
Answer:
Naming system that gives each organism a two-word name. ... the first system of classification. Aristotle. Branch of biology that groups and names organisms. taxonomy. Designed a system of classifying organisms based on their physical and structural similarities ... Mountain lion and the domestic dog. The are similar because their
They must identify traits that are common to all animals as well as traits that can be used to distinguish among related groups of animals. The animal classification system characterizes animals based on their anatomy, morphology, evolutionary history, features of embryological development, and genetic makeup.
Explanation:
The last three units of organization left in the dog from largest to smallest are as follows:
Organs < Tissues < Cells. What are the units of organization in living animals?The units of organization in living organisms can be initiated with the cell. This is because a cell is the basic structural and functional unit of life. And all organisms are composed of cells.
The cluster of cells togetherly forms tissue in order to play the same function. The arrangement of tissues gives rise to organs. Examples of cells include smooth muscle cells, nerve cells, etc. Examples of tissues are connective tissues, muscle tissue, nervous tissues, etc.
While examples of organs include the stomach, liver, blood vessels, muzzle, kidneys, etc.
Therefore, the last three units of organization left in the dog from largest to smallest are Organs < Tissues < Cells.
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Which equation has water as a product in the chemical reaction?
A. Na + CI → NaCl
B. Na + H20 → NaOH + H2 O
C. CO2 + 02 + energy → C6H1206 + 02
D. H2 + 02→ H20
Answer:
B
Explanation:
Some plant roots grow with mycorrhizal fungi. The fungi absorb water and
minerals and pass them on to the plant and receive carbohydrates from the
plant. This is an example of:
- mutualism
- competition
- predation
- parasitism
Answer:
-mutualism
Explanation:
Hope it helps hehe
Over time, biology has explained
all living things.
why people think.
why people use tools.
many natural phenomena.
A brown eyed person (BB) and a blue eyed person (bb) have several children. Which of these statements describe the probable eye color of their children?
1.All will have blue eyes
2.All will have brown eyes
3.Half will have brown eyes, and half will have blue eyes
4.Less than half will have brown eye
Answer:
2. B. All will have Brown Eyes
Explanation:
Brown is dominant, so all children will have Bb, brown eyes
Answer:
Im pretty sure theyll have brown eyes if not my bad
Explanation:
Which describes the process of a bacterial cell dividing to create two daughter cells? O binary fission O fertilization O meiosis gamete formation
Which researcher proposed that dreams are a chance for problem solving? A. Sigmund Freud B. Matthew Wilson C. Rosalind Cartwright D. J. Allan Hobson
Answer:
The answer is Rosalind Cartwright.
Explanation:
A researcher who proposed dreams which are a chance for problem-solving is Rosalind Cartwright. Thus, the correct option for this question is C.
What is Problem-solving?Problem-solving may be defined as an instance of illustrating a problem that significantly determines the consequences of the problem along with identification, prioritization, and selection of alternatives for a solution; and implementing a solution.
Rosalind Cartwright was a neuroscientist who proposed the theory of dreams with respect to the chance for problem-solving. She hypothesized the complete mechanisms of dreaming which is particularly based on REM sleep. It is a way to process emotions, experienced during the day.
Therefore, a researcher who proposed dreams which are a chance for problem-solving is Rosalind Cartwright. Thus, the correct option for this question is C.
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What is stored in carbon bonds?
water
energy
glucose
ATP
Answer:
B. Energy
Explanation:
Help plssssssssssssssssssssssssss
Answer:
b.
Explanation:
Answer:
Hypotonic is true
Explanation:
The time that cell is turgid it means that the water enters alot in the cell.
In the text it is mentioned that this happens in an hypotonic solution.
A scientist is designing an investigation to study the impact of predatory trout on the population of the mountain yellow-legged frog in a recreational nature park. What is most likely the test variable (independent variable) for the study?
A. Frog population
B. Plant population
C. Trout population
D. Tourist population
Answer:
Trout Population
Explanation:
FLVS RIGHT???
How does greenhouse effect, affects biodiversity and gradual extinction
Answer:
Greenhouse gases let the sun’s light shine onto the Earth’s surface, but they trap the heat that reflects back up into the atmosphere. In this way, they act like the insulating glass walls of a greenhouse. The greenhouse effect keeps Earth’s climate comfortable. Without it, surface temperatures would be cooler by about 33 degrees Celsius (60 degrees Fahrenheit), and many life forms would freeze.
Explanation:
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This illustration of a cell has a label. If there were no label, how could you tell that this cell is a plant cell and not an animal cell?
Group of answer choices
The cell has a nucleus.
The cell is surrounded by a cell membrane.
The cell is surrounded by a cell wall.
The cell contains cytoplasm.
Answer:
the cell is surrounded by a cell wall
Explanation:
only plant cells have a cell wall.
Answer:
The cell is surrounded by a cell wall
Explanation:
FIrst off, we can eliminate the first option because all cells have a nucleus.
Second off, all cells have a cell membrane, but animal cells DON'T have cell walls, which makes it option 3.
Finally, it's not "The cell contains cytoplasm due to both animal and plant cells having them.
Ten fish have lived in a 10-gallon fish tank for 6 months. However, within 2 weeks of adding 6 new fish, the population of fish drops to 7
fish. Which most likely accounts for this drop in the fish population?
A. The additional fish increased the water level.
B. The additional fish reduced the space per fish.
C. The additional fish increased the water temperature.
D. The additional fish reduced the carbon dioxide levels.
Answer:
I think it's D
Explanation:
Although space per fish is important, and may even be correct, I found D to be the most logical answer as each fish would need the same amount of carbon dioxide or the unbalance would cause a decrease in population.
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Answer:
hydroelectric
Explanation:
took the test
Answer:
hydroelectric
Explanation:
why might one type of coal contain more energy than another type of coal?
I think because of the strength of the coal, and the material. That makes a big difference, opinion wise.
Because it has a higher carbon content and/or a greater amount of other energy-rich components such as hydrogen and sulfur.
Why some coals have more energy than others?The amount of energy in coal can vary due to differences in the organic matter from which the coal was formed, such as the amount of plant material, the type of plants, and the amount of time the plant material was exposed to heat and pressure.
Additionally, the formation process of coal can also affect the energy content, with coal formed under higher pressures and temperatures typically containing more energy than coal formed under lower pressures and temperatures.
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Essential nutrients move through a cell membrane by both passive transport and active transport. Which of the following correctly describes the transport of materials across a cell membrane?
Answer:
This question lacks options, the options are:
A). Active transport requires chemical energy to move nutrients from areas of low concentration to areas of high concentration.
B). Passive transport requires chemical energy to move nutrients from areas of low concentration to areas of high concentration.
C). Active transport moves nutrients from areas of high concentration to areas of low concentration without the use of chemical energy.
D). Passive transport moves nutrients from areas of low concentration to areas of high concentration without the use of chemical energy.
The answer is A
Explanation:
Transport of materials across a cell occurs via passive transport or active transport depending on whether energy input is required or not to facilitate the movement.
- Passive transport is the transport of materials e.g nutrients from areas of high concentration to areas of low concentration i.e down a concentration gradient, without the use of chemical energy (ATP).
- On the other hand, active transport requires chemical energy (ATP) to move nutrients from areas of low concentration to areas of high concentration i.e against concentration gradient.
What would happen if the Golgi bodies in the cell were destroyed?
The cell would not be able to digest or break down the materials left over from protein creation.
Explanation:
Without a Golgi apparatus, there would be no lysosomes in a cell. Subsequently, the cell would not be able to digest or break down the materials left over from protein creation. This would create a lot of excess junk within the cell. If this happened, the cell wouldn't be able to live for very long.
Which is more important: the brain or the heart? Explain your reasoning.
Answer:
i would say the heart
Explanation:
the heart pumps blood through your system, keeping you alive. the brain only helps you think. and plus, so many people in this world are dumb so they already surviving without a brain so the obvious answer is heart
Groundwater is protected from pollution because it is underground
O True
False
Answer: True
Explanation: Most surface water interacts with underground water sources. Thus, if
groundwater is contaminated, connecting springs, streams, and lakes may suffer the
consequences as well.
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What is the coastal plain? (1 point) A.a raised area in the foothills of the Appalachian Mountains
B.a series of mountains and mountain ridges that are related
C.a flat, lowland area on the coast of the Atlantic ocean
D.a tall, steep area where rivers form rapids and waterfalls
Answer:
c
Explanation:
I promise you
Coastal plain is a flat, lowland area on the coast of the Atlantic ocean.
What is a coastal plain?The coastal plain is a flat, lowland area that is located on the coast of the Atlantic ocean. It extends from the eastern edge of the Appalachian Mountains to the Atlantic coast and includes the eastern part of the United States and parts of Canada and South America.
The coastal plain is characterized by flat terrain, with a few hills and small mountains. It is an important region for agriculture, forestry, and other economic activities, as well as for biodiversity and ecological processes.
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